31 #define SEQ_FRAME_SIZE 6144 32 #define SEQ_FRAME_W 256 33 #define SEQ_FRAME_H 128 34 #define SEQ_NUM_FRAME_BUFFERS 30 35 #define SEQ_AUDIO_BUFFER_SIZE 882 36 #define SEQ_SAMPLE_RATE 22050 37 #define SEQ_FRAME_RATE 25 72 for (i = 0; i < 256; i++)
76 if(p->
buf[256]==0 && p->
buf[257]==0)
99 if (!seq_buffer->
data)
152 for (i = 0; i < 4; i++)
155 for (i = 0; i < 4; i++)
158 for (i = 0; i < 3; i++) {
159 if (offset_table[i]) {
160 for (e = i + 1; e < 3 && offset_table[e] == 0; e++);
163 offset_table[e] - offset_table[i]);
169 if (buffer_num[0] != 255) {
213 for (i = 1; i <= 100; i++) {
320 .
name =
"tiertexseq",
unsigned int current_audio_data_size
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
AVInputFormat ff_tiertexseq_demuxer
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
int index
stream index in AVFormatContext
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
#define SEQ_AUDIO_BUFFER_SIZE
unsigned int current_audio_data_offs
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
static av_cold int read_close(AVFormatContext *ctx)
unsigned int current_pal_data_size
uint64_t channel_layout
Audio only.
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
static int seq_parse_frame_data(SeqDemuxContext *seq, AVIOContext *pb)
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
#define SEQ_NUM_FRAME_BUFFERS
static int seq_fill_buffer(SeqDemuxContext *seq, AVIOContext *pb, int buffer_num, unsigned int data_offs, int data_size)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
enum AVMediaType codec_type
General type of the encoded data.
static int seq_probe(const AVProbeData *p)
static int seq_read_packet(AVFormatContext *s, AVPacket *pkt)
int avio_r8(AVIOContext *s)
int buf_size
Size of buf except extra allocated bytes.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
int block_align
Audio only.
audio channel layout utility functions
unsigned int current_pal_data_offs
unsigned char * current_video_data_ptr
TiertexSeqFrameBuffer frame_buffers[SEQ_NUM_FRAME_BUFFERS]
static int read_header(FFV1Context *f)
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
AVIOContext * pb
I/O context.
static int seq_read_close(AVFormatContext *s)
unsigned int current_video_data_size
This structure contains the data a format has to probe a file.
int sample_rate
Audio only.
unsigned int avio_rl16(AVIOContext *s)
int64_t start_time
Decoding: pts of the first frame of the stream in presentation order, in stream time base...
static const uint8_t offset_table[]
void * priv_data
Format private data.
int bits_per_coded_sample
The number of bits per sample in the codedwords.
AVCodecParameters * codecpar
Codec parameters associated with this stream.
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
#define AV_CH_LAYOUT_MONO
static int seq_read_header(AVFormatContext *s)
This structure stores compressed data.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
static int seq_init_frame_buffers(SeqDemuxContext *seq, AVIOContext *pb)